While it was previously announced that Harmon would return as older Gibbs to narrate the series, NCIS: Origins co-showrunner ...

NCIS: Origins isn't just exploring Gibbs when he was younger — the prequel also features Mark Harmon reprising his role as ...

NCIS legend Mark Harmon is officially returning to the small screen in CBS's highly-anticipated spin-off, NCIS: Origins. Fans ...

NCIS: Origins will follow a young Leroy Jethro Gibbs and tell new stories about the character made famous by Mark Harmon.